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to Potomac ESAS102800 User Manual

1. Important If you choose to use a browser that is not on the list of ce supported browsers Bridgeworks cannot guarantee the behaviour of the Bridge s functionality 3 1 2 Connecting to the Web Interface From within your web browser connect to the Bridge using the address http 10 10 10 10 or if you have changed this previously the address of the left hand network port Depending on your current network parameters it may be necessary to change your network settings on your computer for the initial set up See Appendix A for further help Once you have connected to the web interface on the Bridge you will see the entry page shown below ISCSI to SAS Page 14 o oon To access the web interface a user name and password must be used the defaults of which are Username admin Password admin Note We suggest that you change your password at the next possible opportunity The GUI will now display the Console Home menu screen as shown below ISCSI SAS Bridge Management Console Choose an option Network pt peg a8 w t i Connections Passwords amp Service Control Secunty SCSI Systems lt iSCSi Target iSCSI Sessions Local Device Manogement Bridge Maintenance gt ay A System View Log file Load Save Firmware nformation Configuration Updates Note For security reasons only one person can access this GUI at any one time Therefore to avoid the situation where one person forg
2. section the user can select the Target Port that he wishes to connect too This is particularly useful if the user is going to create multiple connections In this example we have chosen to connect to the IP address 10 10 10 50 on port 3260 ISCSI to SAS Page 46 To see how this relates to the iSCSI Bridge configuration note the P addresses in the window shown below i ridge Management Console Windows Inter z JE A htto 4 10 10 10 10 iscst zj x fin P j eA EEE S Asar FE A ESCs Bridge Manage DEAA 135 Set up the Digest and CHAP settings as described in stage 2 during the discovery phase and click OK This will now take you back to the window that was shown in figure 10 Click OK once more The user should now see the iSCSI Target connected Favorite Targets a To access storage devices for a target select the target and then click Log on To see information about sessions connections and devices for a target dick Details Targets Name Status ign 1988 11 com dell b9ad34 spi 6 0 0 Connected ign 1988 11 com dell b9ad34 spi 6 0 1 Inactive Potomac ESAS102800 Page 47 Step 4 Viewing iSCSI Session Details Now that the user has connected to an iSCSI Target to check that the device is connected click on the Details button A window should appear Session Properties Target portal group 1 Status Connected Connection count 1 Session Connections To configure how the connections within
3. Potomac ESAS102800 Page 59 Step 4 Viewing iSCSI Session Details Now that the user has connected to an iSCSI Target to check that the device is connected click on the Properties button A window should appear Properties g Sessions Portal Groups CO fffffasoo1770018 4000013700000008 To add a session click Add session Add session To disconnect one or more sessions select each Disconnect session and then click Disconnect To view devices associated with a session select Devices a session and then click Devices Session Information Target portal group tag 1 Status Connected Connection count 1 Maximum Allowed Connections 10 Authentication None Specified Header Digest None Specified Data Digest None Specified Configure Multiple Connected Session MCS To add additional connections to a session or configure the MCS policy for a selected session MCS click MCS More Information on iSCSI Sessions OK Cancel In this window the user can view the iSCSI Sessions associated to the iSCSI Target how many connections are attached to each iSCSI Session and the Target Portal Group If the user clicks on the Devices tab he should see details of the target device Port 2 Bus 0 Target 0 LUN O Volume path names Legacy device name Device interface name 4 a Configure Multipath 1 MPIC To configure the MPIO policy For a selected device click
4. Advanced x i Cancel Enter an IP address for the iSCSI Target In this example we shall use the IP address of 10 10 10 50 Leave the port 3260 unless you have configured your iSCSI Bridge only to respond on port 860 in which case change it to 860 Click on the advanced button to see the advanced options Advanced Settings General IPsec Connect by using Local adapter Microsoft iSCSI Initiator Source IP Default E Target portal CRC Checksum Data digest Header digest CHAP logon information F Use RADIUS to generate user authentication credentials Use RADIUS to authenticate target credentials The Connect by using box allows the user to specify which iSCSI Adaptor to use and the Source IP The Local adaptor will only differ from Microsoft iSCSI Initiator setting if an iSCSI Offload card has been installed For the purpose of this guide we shall only use the Microsoft iSCSI Initiator Leaving this setting as Default will also use the Microsoft iSCSI Initiator The Source IP is used to specify upon which network adaptor the discovery will be done In most cases the user will want to leave this as default If multiple network interfaces are installed in the Server and the user wishes to select a particular interface select the IP address of that network interface from the pull down list Potomac ESAS102800 Page 43 CRC Checksum settings allow the user
5. Page 37 zjx Gigabit Ethernet Properties General Sharing Connect using BY NETGEAR GA311 Gigabit Adapter Configure Components checked are used by this connection v amp Client for Microsoft Networks C E Network Load Balancing v A File and Printer Sharing for Microsoft Networks M SF Internet Protocol TCP IP Install Uninstall Properties Description Allows your computer to access resources on a Microsoft network IV Show icon in taskbar when connected OK Cancel Internet Protocol TCP IP Properties 2 x General You can get IP settings assigned automatically if your network supports this capability Otherwise you need to ask your network administrator for the appropriate IP settings Obtain an IF address automatically Use the following IP address IP address T W A Subnet mask 255 20 20 Default gateway i F Obtain DNS server address automatically Preferred DNS server z i Alternate DNS server F j Advanced Use the following DNS server addresses OK Cancel Select the Internet Protocol TCP IP entry and then Properties Make a Note of your current set up then Click Use the following IP Address Enter 10 10 10 11 into the IP Address field Enter 255 255 255 0 into the Subnet Mask field Finally click the OK button Note Once you have completed the initial set up of the B
6. i i i 3i HA A4 i b 80 Ad 255 255 255 0 i i i 255 bridgeworks F 1200 FC SCSI Bridge IP Address 16 68 8 241 Mac AA cH 9f 2a bf 5e Hetmask 255 255 455 0 Broadcast 16 6 68 255 Gateway Sdocuments gt Potomac ESAS102800 Page 35 Appendix A Setting up your Computer for Initial Setup A1 Windows 95 98 or NT If your computer is running Windows 95 98 or NT follow the instructions below For users with Windows 2000 2003 or XP instructions are detailed in Appendix A2 and for Windows Server 2008 7 or Vista instructions are detailed in Appendix A3 From the Start menu choose Settings then Control Panel Then click the Network icon Network 2 x Configuration Identification Access Control The following network components are installed In the Network window s Confi gu ration tab Client for Microsoft Networks Sif 3Com Fast EtherLink XL 10 100Mb TX Ethernet NIC 3C9 E Dial Up Adapter Select the TCP IP entry Y TCP IP gt 3Com Fast EtherLink XL 10 100Mb TX Etherne TCP IP gt Dial Up Adapt v ee P Then the Properties Button i Remove Properties Primary Network Logon Client for Microsoft Networks File and Print Sharing Description TCP IP is the protocol you use to connect to the Internet and wide area networks 21x Click on the IP Address tab Bindings Advanced NetBIOS l DNS Configuration Gateway WINS Configuration IP
7. session page You should now see the number of connections increased In this example we have 2 connections Sessions Portal Groups Refresh C Fffffas001770018 4000013700000007 To add a session click Add session Add session To disconnect one or more sessions select each Disconnect session and then click Disconnect To view devices associated with a session select Devices a session and then click Devices Session Information Target portal group tag 1 Status Connected Connection count 2 Maximum Allowed Connections 10 Authentication None Specified Header Digest None Specified Data Digest None Specified Configure Multiple Connected Session MCS To add additional connections to a session or configure the MCS policy for a selected session MCS click MCS More Information on iSCSI Sessions OK Cancel Now click on OK to return to the Microsoft iSCSI Initiator main window Potomac ESAS102800 Page 63 Step 6 Logging off an iSCSI Session To log off an iSCSI Session follow the following procedure e Open the Microsoft iSCSI Initiator and click on the Targets tab e Click on the iSCSI session that the user wishes to log off e Click the Disconnect button This will log off all connections associated with the ISCSI Session The iSCSI device should now show as inactive ISCSI to SAS Page 64 Appendix C Visual Indicators Ethernet On Link Off No Li
8. this session are load balanced click Connections In this window the user can view the iSCSI Sessions associated to the iSCSI Target how many connections are attached to each iSCSI Session and the Target Portal Group If the user clicks on the Device tab he should see details of the target device Here we can see that the device is an IBM LTO Tape drive Devices These are the devices exposed by iSCSI sessions to the target Click Advanced to view information about the device and configure the multipath policy Devices Device Name MPIO Capable ISCSI to SAS Page 48 Step 5 Creating multiple connections Optional If the user wishes to create multiple connections to an iSCSI Session return to the Session tab in the Target Properties window Click on the Connections button and a window should appear This is shown below Session Connections Connections Load balance policy Round Robin Description The round robin policy attempts to evenly distribute incoming requests to all processing paths This session has the following connections Source Portal Target Portal Status Type Weight C 10 0 0 237 5 10 10 10 50 Conne Active n a 0 Remove Edit Cancel The Session Connections window shows how many iSCSI Connections are active and the type of load balance used For all iSCSI Sessions there will be at least one leading connection I
9. Address Make a Note of your current set up then n IP address can be automatically assigned to this computer If your network does not automatically assign IP addresses ask your network administrator for an address and then type it in Click on the Specify an IP address button the space below Obtain an IP address automatically Specify an IP address IP Address Enter 10 10 10 11 into the IP Address field Subnet Mask Enter 255 255 255 0 into the Subnet Mask field Finally click the OK button and reboot your computer Note Once you have completed the initial set up of the Bridge return your computer to the original settings and reconnect to the Bridge ISCSI to SAS Page 36 A2 Windows 2000 2003 XP If your computer is running Windows 2000 2003 or XP follow the instructions below For users with Windows 95 98 or NT instructions are detailed in Appendix A1 and for Windows Server 2008 7 or Vista instructions are detailed in Appendix A3 From the Desktop or Start menu select My Computer My Computer mi File Edt view erk gt E Qssearch Cyrolders Brstory B OS X A E 10 x Favorites Tools Help Address E My Computer Go 314 Inch Floppy Disk Total 5 Name ays Floppy 4 JLocal Disk C Local Disk amp Compact Disc D Compact Disc amp Data on ntserver Network Drive Control Panel System Folder a L My Computer Select an item t
10. Bridge is operational Potomac ESAS102800 Page 45 To connect to one of the iSCSI Targets click on one of the target names and then click the Log on button In this example we have chosen the first target A window should appear Log On to Target Target name Automatically restore this connection when the computer starts Enable multi path A Only select this option if iSCSI multi path software is already installed on your computer Advanced PETEERE A If the user wishes to connect to the target automatically when the computer is booted click the check box Automatically restore this connection when the computer starts Even if the user wishes to connect to the iSCSI Target using Multipath they should not check Enable Multi path Check box This will be covered in a following section Now click on the advanced button to see the advanced settings A window should appear as below Advanced Settings i General IPsec Connect by using Local adapter Microsoft iSCSI Initiator z Source IP 10 0 0 237 v Target portal 10 10 10 50 3260 z CRC Checksum Data digest Header digest _ CHAP logon information Use RADIUS to generate user authentication credentials F Use RADIUS to authenticate target credentials This advanced settings page is the same as that of the discovery with one addition On the Connect by using
11. MPIC MEI Information On iSCSI Device Details ISCSI to SAS Page 60 Step 5 Creating multiple connections Optional If the user wishes to create multiple connections to an iSCSI Session return to the Session tab in the Target Properties window Click on the MCS button and a window should appear This is shown below Multiple Connected Session MCS x MES policy The round robin policy attempts to evenly distribute incoming requests to all processing paths This session has the Following connections Source Portal Target Portal 0 0 0 0 61894 10 10 10 107 3 Connected Active nja mmm To add a connection click Add Add To remove a connection select the connection above and then Bertone click Remove To edit the path settings For the MES policy select a Edit connection above and then click Edit Cancel Apply The Multiple Connected Session window shows how many iSCSI Connections are active and the type of load balance used For all iSCSI Sessions there will be at least one leading connection iSCSI connections can be added and removed at any time all apart from the leading connection which can only be removed when the iSCSI Session is logged off The MCS policy specifies how the data is distributed over multiple connections The main policies that should be used are Round Robin and Fail Over Only Round Robin will utilize all connections for
12. Saving the Configuration to DISK cccccccccseececeeeeeeeeeeseeeeseeeeeseeeesseeeeas 29 5 3 Restoring A Saved Configuration cccccccssececseceeseeeeceeeesseeeseesesseeesees 30 5 4 Restoring Factory Deta lSosssiccsiisirireie i a odie dean ei TE 30 6 0 T OUDIESHOONN san A 31 6 1 HO SUI AS SWOl renean a aia cece a cereale aes 31 6 2 Network problemS jc 2625 cc tendonctsctensecu tant aicuatet secu sendadeieelet ruben oeauaeetaacu hendaces 32 6 3 Device related problems cccsecccseeccececeeeeceeeceueeceuecesecueesseeseusenseesags 33 6 4 Poor F CHORMVANIGS incre uuicitatateaasteiti ated tata leaasteatiaiachi ata tlenpiieaieatech eta tteannataateaktetatiees 34 6 5 WO Si MNOS S Smseatteceseahieeietetakt ata ea aac oeeceet tenet anaseatate at aetaca atta 35 Appendix A Setting up your Computer for Initial Setup cc eecceeeeeceeeeeeeeeeeees 36 ATWNdOWwS 9598 0r N Terrane ale eonstecs annals aaplaesieeas 36 A2 Windows 2000 2003 X P sedesi e O seat oneedeceseeees 37 A3 Windows Vista Server 2008 or Vista OF 7 ssssssssssssssssrnrssrrresrrrrsrrrrsrrrrerrren 39 Appendix B Microsoft iSCSI Initiator ce ccccecccssececeeeesseeeeseeeseeeeeseeseseeeesseeeesees 41 B1 Connecting to an iSCSI Device using the Microsoft iSCSI Initiator in Windows Vista Server 2008 R1 Or Server 2008 carri aaa aR TRAE 41 ISCSI to SAS Page 4 B2 Connecting to an iSCSI Device using the Microsoft iSCSI Initiator in Windows DEIVEl 20
13. configuration to upload into the Bridge Once located click the upload button and the new configuration data will be uploaded Once completed use the various configuration pages to make any further adjustments required and then reboot the system 5 4 Restoring Factory Defaults By clicking on this button all the parameters will be set back to the factory defaults This includes IP address hostname and passwords We recommend that if you return the Bridge for maintenance that you reset to defaults to protect passwords and other sensitive information ISCSI to SAS Page 30 6 0 Trouble shooting 6 1 Lost Password If you have lost the admin password it is possible to reset it with help from Bridgeworks Challenge 249Q35CYD5a Key First ensure that there is nothing entered into the user field and then type PASSWORDRESET into the password field The unit will respond with a challenge key Copy this key into an email along with your name company and contact details you must include your company s personnel email address for security purposes Send this email to support 4bridgeworks com and a key will be returned for you to enter into the key field Press the reset button once you have entered the key this will reset the admin user password back to admin Potomac ESAS102800 Page 31 6 2 Network problems Under normal operation you should be able to ping the network address of the Bridge and receive
14. on the target For this initiator User name ign 1991 05 com microsoft tarquin vista Target secret F Use RADIUS to generate user authentication credentials Perform mutual authentication To use mutual CHAP either specify an initiator secret on the Initiator Settings page or use RADIUS The same secret must be configured on the target Use RADIUS to authenticate target credentials Select the Source IP address and the Target Portal that you wish to connect too via the pull down menus in the Connect by using section When setting up multiple connections you ideally want to connect to different ports and different network interfaces In this example we have connected to 10 10 10 50 3260 as the leading connection and the second connection will be 10 10 11 50 3260 The corresponding network configuration on the iSCSI Bridge for the example above is shown below rm fog p X Live Search Pe i mares z 2 ale re tt CO A iietp 10 10 30 50 connections Be GE Ay Network Connections gt B av cp Pagee G looms Network Connections rrors Internet Protected Mode Ot 100 ISCSI to SAS Page 50 Set up CHAP and Digest then click OK The user will now be brought back to the window below Click OK and now the user should see the Session Connections page with two connections Connections Load balance policy Description The round robin policy attempts to even
15. the Bridge From within the main menu select the iSCSI Target icon from the SCSI System group The GUI will now display the following window Bridge Control iSCSI Target Console Home Authorisation Reboot System Logout Support Online Help Physical Port Configured TCP Port s Network 1 3260 7 Network 2 3260 as CHAP To enable CHAP click the tick box and enter the following details e Username this is the same name as specified in the iSCSI host e Initiator Secret this is the password defined in the iSCSI host e Target Secret this is the password that the Bridge will send to the iSCSI host Multipath Settings Multipath is a method of sending data to an iSCSI target over multiple network connections These network connections can be on the same physical network cable or separate network cables By using Multipath it is possible to increase the network bandwidth to send data over A user may have a single iSCSI Session for an iSCSI Target but within that session may have multiple connections iSCSI uses to two main network ports 3260 and 860 Within the Multipath configuration the user can specify which ports will be made available to the initiator 860 3260 or both By default the Bridge will allow up to 10 iSCSI connections per iSCSI Session However some initiators will only allow 1 iSCSI Connection per iSCSI Session and will reject any login to an iSCSI Target that tries to negotiate more iSCSI Connectio
16. the initiator secret and set up the IPsec connections For the purpose of this document we shall leave the initiator name as the default The iSCSI Bridge not support this Potomac ESAS102800 Page 41 If you intend to use Mutual CHAP authentication you must enter the Initiator secret on this page Click on the secret button and a window should be displayed Type a CHAP secret to be used to authenticate verify targets The most secure CHAP secrets are not words and phrases but a random sequence of characters Enter this same CHAP secret on the target so that the initiator can connect CHAP secret Enter in the Initiator Secret and click OK The secret should be between 12 and 16 characters Make a note of this secret as you will need to enter this as part of configuring CHAP on the iSCSI Bridge Step 2 Discovery of Devices Before the user can connect to an iSCSI Target the iSCSI targets must be discovered Click on the Discovery tab and you should see the window below Favorite Targets Volumes and Devices Discovery Target portals Address Port IP address ISNS servers ISCSI to SAS Page 42 To add an iSCSI Target portal click on Add Portal The user should now be presented with a window Add Target Portal Exa Type the IP address or DNS name and port number of the portal you want to add To select settings for the discovery session to the portal click Advanced IP address or DNS name
17. 09 FZ airen b an a AS eet aaae Gene 53 Appendix O Visual INdiC OTS sensis whseaatenidanalendsimatedaes mieaddengeadeantantcad 65 Appendix D recnnical SpecicatoN Seinere ceca Seed AE E EA 66 Potomac ESAS102800 Page 5 1 0 Introduction Thank you for purchasing the Bridgeworks iSCSI to SAS Bridge The Bridge has been designed to ensure that in the majority of installations it will require the minimum of set up before use However we suggest you read the following section that will guide you through setting up both the network and SAS aspects of the iSCSI Bridge The GUI Management section guide you through the initial set up required to install the Bridge on to your network 1 1 Overview The iSCSI Bridge creates an interface between a network which utilises the Ethernet protocol and peripherals that utilise the SAS bus The internal circuitry of the Bridge acts as a two way interface converting the data packets that are received on the network into data transfers and electrical signals that storage devices such as disks tape drives and optical disks understand on the SAS bus The Bridgeworks Enterprise iSCSI Bridge ISCSI to SAS Page 6 1 2 Manual Layout Throughout the manual symbols will be used to quickly identify different pieces of information This icon represents a note of interest about a step or section of information ce This icon represents an important piece of information This icon represents a warning ca
18. 1 643 Gees ioe Givens Local Area Connection Properties lem Connect using Select the Internet Protocol Version 4 TCP IP KP Realtek RTL8168D 8111D Family PCI E Gigabit Ethemet entry and then Pro pe rties This connection uses the following items o Client for Microsoft Networks Z QoS Packet Scheduler 5 File and Printer Sharing for Microsoft Networks 4 Intemet Protocol Version 6 TCP IPv6 m ntemet Frotoco Link Layer Topology Discovery Mapper 1 0 Driver Link Layer Topology Discovery Responder Install Description Transmission Control Protocol Intemet Protocol The default wide area network protocol that provides communication across diverse interconnected networks OK Cancel otomac ESAS102800 Page 39 Internet Protocol Version 4 m CP APy4 Properties 2 e General Make a Note of your current set up then You can get P settings assigned automatically if your network supports this capabdity Otherwise you need to ask your network administrator SRL E Click Use the following IP Address Obtain an IP address automaticaly nee Enter 10 10 10 11 into the IP Address field Subnet mask 255 255 255 0 Default gateway 0 0 i Enter 255 255 255 0 into the Subnet Mask field Obtain ONS server address automaticaly Use the folowing DNS server addresses Finally click the OK button Note Once you have completed the initial set up
19. 4 AN BRIDGEWORKS simply making data flow Potomac ESAS102800 iSCSI to SAS Bridge 3006 2800 User Manual V3 5 Bridgeworks 135 Somerford Road Christchurch Dorset BH23 3PY Tel 44 0 1202 588 588 Fax 44 0 1202 588 589 Email support 4bridgeworks com Manual Revision History Revision Date Firmware 3 2 July 2011 V3 02 3 3 May 2012 V3 02 AP 3 4 August 2013 V3_04 AP 3 5 October 2013 V3_04 AP Warning iSCSI to SAS Page 2 The Bridgeworks Potomac ESAS102800 iSCSI to SAS Bridge contains no user serviceable components Only an Authorized Service Centre should carry out any servicing or repairs Unauthorized repairs or modifications will immediately void your warranty Before you start There are a number of additional pieces of equipment you will require for the successful installation of your Bridge Ethernet Cable You will require a good quality cable of suitable length to go between your network access point and the Bridge This should be marked as certified to Cat 5e and have a RJ45 style connecior at the Bridge end 10Gb Ethernet Cable Depending on the configuration you have purchased you will require at least one cable from either e Multimode Multi Mode 50 125 OM3 Patch Cable up to 300 meters e Multimode Multi Mode 50 125 OM4 Patch Cable up to 550 meters e ASFP Direct Attached Twin Ax Copper interface cable up to 5 meters SAS Cable The Bridge uses a Mini SAS sty
20. 4 Patch Cables up to 550 meters To connect the iSCSI Bridge the Ethernet network or directly to a device insert one or two SFPS into the unit Insert the multimode cables into the SFP you just inserted on the unit as shown below When the plug is in the correct position a click should be heard ISCSI to SAS Page 10 Using a copper solution If you are using a copper based solution a SFP Direct Attached Twin Ax Copper interface cable must be used The maximum supported length of which is 5 meters To connect the iSCSI directly to a device inset one or two SFP cables into the connector on the unit as shown below When the plug is in the correct position a click should be heard Note The 10Gb Ethernet ports only support speeds of 10GB Sec Potomac ESAS102800 Page 11 2 3 SAS BUS Connection The SAS bus on the iSCSI Bridge is capable of running at speeds of up to 6Gbits s However devices that operate at slower speeds can still be connected to this SAS bus In a manner similar to the Ethernet connection the iSCSI Bridge will automatically negotiate with these devices to obtain their optimal operating speed upon power up Each SAS port will support up to 4 SAS connections Connect the SAS cable s to the iSCSI Bridge as shown below ensuring that connector is the correct way up Note Each SAS port supports 4 independent SAS channels You can use either port as the initial port Connecting the S
21. AS Cable to the Bridge SAS Port ISCSI to SAS Page 12 2 4 Connecting the Power Supply Before connecting the power cord to the unit ensure the wall plug is removed or is switched off Connect the power cord to the rear of the iSCSI Bridge Note Before powering up the Bridge ensure all the peripherals are powered up and you have a connection to the network To turn on the Bridge use the switch on the opposite side to the power connector and push in the button Whenever the Bridge is powered on the green LED on the back panel will be illuminated Potomac ESAS102800 Page 13 3 0 Configuring the ESAS102800 Bridge Before the iSCSI Bridge can be used on the network for the first time it is necessary to configure a number of parameters 3 1 Using the Web Interface Now that the Bridge is fully connected the primary method for configuring any option is through its web interface The following section highlights the requirements needed to access these pages and the consistent layout used throughout Note The default IP address of the web interface for the Bridge is http 10 10 10 10 3 1 1 Browsers This Bridge supports the following browsers Microsoft Internet Explorer 8 Microsoft Internet Explorer 9 Microsoft Internet Explorer 10 Mozilla Firefox 20 Mozilla Firefox 21 Mozilla Firefox 22 Google Chrome Latest K Note JavaScript must be enabled within the web browser to use the web interface s functionality
22. SCSI connections can be added and removed at any time all apart from the leading connection which can only be removed when the iSCSI Session is logged off The Load balance policy specifies how the data is distributed over multiple connections The main policies that should be used are Round Robin and Fail Over Only Round Robin will utilize all connections for data and evenly distribute the data Fail Over Only will use the Leading connection for data transfer If a connection should go down then the data transfer shall switch on one of the other connections For most purposes Round Robin will provide the greatest performance increase If you have been experiencing a performance decrease when transferring data to more than one device using multiple connections please refer to the trouble shooting guide To add a new connection to a session click on the Add button and a new window should appear Add Connection Target name n 1988 11 com dell b9ad34 spi 6 0 0 Advanced Cancel Potomac ESAS102800 Page 49 Now click on the Advanced button to see the Advanced Settings Connect by using Local adapter Microsoft iSCSI Initiator Target portal 10 10 11 50 3260 CRC Checksum Data digest E Header digest CHAP logon information CHAP helps ensure data security by providing authentication between a target and an initiator To use it specify the same target CHAP secret that was configured
23. SI bus that can be accessed by the Server Each device on the SCSI bus has a Unique ID number in the range 0 15 Note By convention ID 7 on the SCSI Bus is reserved by the Server s Host Bus Adaptor Logical Unit Numbers LUN Each SCSI device on the SCSI bus can support sub devices These are called LUNs Within the iSCSI Connect Bridge each SCSI ID on the SCSI bus can support 7 LUNs Potomac ESAS102800 Page 7 1 4 Safety Notices AN This device should only be installed by suitably trained personnel Protection provided by the equipment may be impaired if used in a manner not specified by the manufacturer Do not block the enclosure s vents Air enters from the front and is exhausted out the back of the device This device is connected to the AC power line Before using the device please read the instructions carefully in order to use the device correctly and safely For the installation instructions refer to the installation section of this guide Class Equipment This equipment must be earthed The power plug must be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place hazardous voltages on accessible metal parts Do not attempt to service the equipment yourself doing so will void the warranty and may damage the system This unit contains hazardous voltages and should only be opened by a trained and qualified technician To prevent electric shock do not remov
24. a response If this fails run through the following checklist to help you identify the problem Ensure that the Bridge is properly plugged into the library and that the library is powered on Make sure that the power LED on the Bridge is illuminated Ensure that the Ethernet cable is plugged in at both ends Note the status of the LEDs positioned within the Ethernet connector make sure that the Link present LED is illuminated If it is not check with your Network Administrator If you are using a Bridge with two Ethernet ports and only one network cable try using the other network address and or the other network port Ensure you are using the correct network address and netmask Scan the network using the LAN Scan utility to find all the Bridges connected to the network in case the network address is different from that expected See Section Lost IP Address If none of the above resolves your problem then after consulting with your Network Administrator please contact support ISCSI to SAS Page 32 6 3 Device related problems Once the Bridge has booted and the target devices have finished initialising these devices should be available on the host machine After checking that you have correctly configured the initiator run through the following checklist to help you identify the problem Ensure that the devices are powered on and are ready some libraries can take 5 minutes or more before they are ready and a
25. administrator to save and load the configuration parameters to a file on a local disk From within the main menu select the Load Save Configuration icon from the Bridge Maintenance section The GUI will now display the following window Load Save Configuration Bridge Control Console Home Import Configuration Reboot System J Browse Note after uploading a new configuration you will need to reboot the bridge Support g Online Help Export Configuration Restore Defaults Once you have finished configuring your Bridge we recommend that you save your configuration data to a local disk By doing so you could save valuable time if the unit requires replacement or if you require restoring an old firmware version as the configuration may change due to upgrades It is possible to create a Boiler Plate configuration and load this into each new Bridge as it is initialised This can ease the rollout of multiple Bridges within an enterprise To save the configuration data click on the Click here to Download link from within the Export Configuration window located in the centre of the page Depending on the browser you are using select the option to save file to disk The Bridge will now download an encoded file that contains all the configuration settings for the Bridge Potomac ESAS102800 Page 29 5 3 Restoring A Saved Configuration To reload the configuration click on the Browse button and locate the required
26. ation In this window the user is able to configure the initiator name specify the initiator secret and set up the IPsec connections For the purpose of this document we shall leave the initiator name as the default Potomac ESAS102800 Page 53 If you intend to use Mutual CHAP authentication you must enter the initiator secret on this page Click on the secret button and a window should be displayed iSCSI Initiator Mutual CHAP Secret x The SSI initiator mutual CHAP secret is used to authenticate the target The secret entered here will have to be configured on each target that you wish ko use mutual CHAP Mutual CHAP requires the use of initiator authentication when connecting to the target this can be done by using the advanced options when making connections to the target To clear the secret From the initiator click Clear and then Cancel Initiator CHAF secret ae Enter in the initiator secret and click OK The secret should be between 12 and 16 characters Make a note of this secret as you will need to enter this as part of configuring CHAP on the iSCSI Bridge Step 2 Discovery of Devices Before the user can connect to an iSCSI Target the targets must be discovered Click on the Discovery tab and you should see the window below iSCSI Initiator Properties xi Targets Discovery Favorite Targets volumes and Devices RADIUS Configuration M Target portals The system will look for Target
27. ces click on the blue triangle the left of the target Device Management Bridge Control Console Home Device Info Reboot System Logout o HP Ultrium 2 SCSI Rev T61D Sequential access device Device SPC 3 Rernovable Media naa 50060B000057E758 hne 0 1 0 0 Enabled Update Configuration The expanded information also gives you a device control option Enable Disable Device This pull down menu option allows you to disable a device from appearing on the interface Potomac ESAS102800 Page 25 4 0 Information 4 1 System Information This System Information page will allow the administrator to view the Performance of the Bridge From within the main menu select the System Information icon from the Bridge Maintenance section The GUI will now display the following window System Information Bridge Control Console Home z amp Firmware Details Firmware Revision vielerj v3 02 Mar 30 2011 11 40 27 Boot loader Revision 1 2 0 1 1 sfc2200_v3_01_09_beta Jun 10 2010 Reboot System Serial Number 007179 iSCSI IQN igqn 2002 12 com 4bridgeworks 001c0b Logout Support System Performance Online Help contact support contact Support Data throughput OMB s CPU Utilisation 0 Memory Usage Within the top window the following information is displayed Current Firmware amp Boot Loader Revision Level SAS Firmware Revision Level Ser
28. connection click on the connection You will be presented with the screen as shown below where you can make changes to the connection Potomac ESAS102800 Page 17 Network Port Network 1 Bridge Control Port Settings MTU Size Use DHCP to assign an IP address automatically Use the following IP address IP Address 10 10 10 120 Netmask 255 255 255 0 Use automatic IPv6 address assignment Use the following IPv6 address IPv6 address Default gateway Up Link Speed 1000Mb s 161579 TX Bytes 596400 0 TX Errors 0 IPv4 Address 10 10 10 120 IPv6 Address 3 2 3 Setting the MTU Enabling larger frames on a jumbo frame capable network can improve the performance of your backup operations Jumbo frames are Ethernet frames that contain more than 1500 bytes of payload MTU Before enabling jumbo frames ensure that all the devices hosts located on the network support the jumbo frame size that you intend to use to connect to the Bridge If you experience network related problems while using jumbo frames use a smaller jumbo frame size Consult your networking equipment documentation for additional instructions Some networking switches require you to specify the size of the jumbo frame MTU when enabling as opposed to a simple enable command On these switches it might be required to add the necessary bytes needed for the frame header i e header information MTU Typical header size is 28 bytes so a 9000 b
29. d see the target listed in the Target Portals list iSCSI Initiator Properties xi Targets Discovery Favorite Targets volumes and Devices RADIUS Configuration M Target portals The system will look for Targets on Following portals Refresh Address Port Adapter IP address 10 10 10 99 3260 Microsoft iSCSI Initiator 10 10 10 99 To add a target portal click Discover Portal Discover Portal To remove a target portal select the address above and Remove then click Remove MISNS servers The system is registered on the Following iSNS servers Refresh To add an iSNS server click Add Server Add Server To remove an iSNS server select the server above and then click Remove Remove More about Discovery and iSNS OK Cancel hoply ISCSI to SAS Page 56 If the user has an iSNS server then the address can be added in the iSNS servers list by clicking Add Server A window should appear Add iShS Server Enter the IP address or DNS name of server Enter the address of the iSNS Server then click OK The Microsoft iSCSl Initiator will now query the iSNS Server and discover any iSCSIl Targets that are registered Step 3 Targets Click on the Targets tab The devices discovered should now be listed and shown as below iSCSI Initiator Properties Targets Discovery Favorite Targets Volumes and Devices RADIUS Configuration Quick Connect To d
30. d this connection to the list of Favorite Targets This will make the system automatically attempt to restore the connection every time this computer restarts Enable multi path Advanced Cancel Even if the user wishes to connect to the iSCSI Target using Multipath they should not check Enable Multi path Check box This will be covered in a following section Now click on the advanced button to see the advanced settings A window should appear as below Advanced Settings 24x General IPsec M Connect using Local adapter Initiator IP Defa o i Target portal IP Default v MERC Checksum J Data digest Header digest Enable CHAP log on M CHAP Log on information GHAP helps ensure connection security by providing authentication between a target and an initiator To use specify the same name and CHAP secret that was configured on the target For this initiator The name will default to the Initiator Name of the system unless another name is specified fames ign 1991 05 com microsoft win d3081sidkbe Target secret J Perform mutual authentication To Use mutual CHAP either specify an initiator secret on the Configuration page or use RADIUS J Use RADIUS to generate user authentication credentials J Use RADIUS to authenticate target credentials This advanced settings page is the same as that of the discovery with one additio
31. d where the integrity of the Network connection is in doubt Poor GUI performance If the Bridge is transferring large amounts of data then the response from the GUI may seem a little slow as the process that controls the GUI has the lowest priority for Network and CPU resources ISCSI to SAS Page 34 6 5 Lost IP Address Introduction The utility will find any device irrespective of its IP address this can be helpful in determining the IP address of a Bridgeworks device with an unknown IP address and for checking the number of Bridgeworks devices on a network Downloading LAN Scan The utility can be downloaded from http www 4bridgeworks com support software shtml How to use LAN Scan The utility is available under both Windows and Linux and is a CLI based tool The downloaded file is in zip format and contains the files lanscan lanscan exe and lanscan bat For the GNU Linux operating system the lanscan executable is needed For the Windows operating system the lanscan exe and lanscan bat files are required Linux Execute lanscan within a console and the output is displayed on screen Windows Double click on lanscan bat This will create a file named lanscan txt Open lanscan txt within a text editor to view the discovered Bridgeworks devices Typical output c EA WINDOWS system3z cmd exe P FC Bridge Port gt IP Address 16 18 11 18 HA 64 1b 88 886 8c 255 255 255 0 16 16 1868 255 4 6 6 8 1568
32. data and evenly distribute the data Fail Over Only will use the Leading connection for data transfer If a connection should go down then the data transfer shall switch on one of the other connections For most purposes Round Robin will provide the greatest performance increase If you have been experiencing a performance decrease when transferring data to more than one device using multiple connections please refer to the trouble shooting guide To add a new connection to a session click on the Add button and a new window should appear Potomac ESAS102800 Page 61 Add Connection Target name gn 2002 12 com 4bridgeworks 000000 97 7d0ases6978526 000000000 Advanced Cancel Now click on the Advanced button to see the Advanced Settings Advanced Settings 20x General IPsec Connect using Local adapter Microsoft iSCSI Initiator Initiator IP Target portal IP Default x CRC Checksum E Data digest Header digest Enable CHAP log on CHAP Log on information GHP helps ensure connection security by providing authentication between a target and an initiator To use specify the same name and CHAP secret that was configured on the target For this initiator The name will default to the Initiator Name of the system unless another name is specified Name iqn 1991 05 com microsoft win d3081 sidkbe Target secret F Perform mutual authenticatio
33. e the cover There are no user serviceable parts inside The power cord is used as a disconnection device To de energize the equipment disconnect the power cord Do not use the equipment where it can get wet Protect equipment from liquid intrusion If your equipment gets wet disconnect power to the equipment and to any attached devices If the Bridge is connected to an electrical outlet turn off the AC power at the circuit breaker before attempting to remove the power cables from the electrical outlet Disconnect any attached devices Use only the power supply cord set provided with the system for this unit should this not be correct for your geographical area please contact your supplier The mains plug to the rear of the unit is used as the power disconnect device please ensure that this is kept clear from any obstruction and is visible at all times Before installing or removing signal cables ensure that the power cables for the system unit and all attached devices are unplugged To prevent electrical shock hazard disconnect the power cable from the electrical outlet before relocating the system Class 1 Laser Product Certain models will use a Small Form Factor Pluggable GBIC module for connection to an optical network These devices may use a Class 1 Laser device it is important that you do not stare into the Laser beam ISCSI to SAS Page 8 2 0 Installing the ESAS102800 Bridge There are 3 basic steps to installing
34. eader digest Enable CHAP log on M CHAP Log on information an initiator specified F Perform mutual authentication RADIUS GHAP helps ensure connection security by providing authentication between a target and To use specify the same name and CHAP secret that was configured on the target For this initiator The name will default to the Initiator Name of the system unless another name is fame iqn 1991 05 com microsoft win d308 1 sidkbe Target secret To use mutual GHAF either specify an initiator secret on the Configuration page or use F Use RADIUS to generate user authentication credentials Use RADIUS to authenticate target credentials The Connect using box allows the user to specify which iSCSI Adaptor to use and the Source IP The Local adaptor will only differ from Microsoft iSCSI Initiator setting if an iSCSI Offload card has been installed For the purpose of this guide we shall only use the Microsoft iSCSI Initiator Leaving this setting as default will also use the Microsoft iSCSI Initiator The Initiator IP is used to specify upon which network adaptor the discovery will be done In most cases the user will want to leave this as default If multiple network interfaces are installed in the server and the user wishes to select a particular interface select the IP address of that network interface from the pull down list CRC Checksum settings allow the user to specify wh
35. ether the discovery is done using Data Potomac ESAS102800 Page 55 and or Header Digests Unless the iSCSI device is on a poor quality network where data corruption is likely it is recommended that Header and Data Digests are left disabled as performance will be affected If the ISCSI Bridge has had CHAP enabled or the user wishes to authenticate the ISCSI Bridge click on the checkbox Enable CHAP log on to enable CHAP Now enter the username and target secret that was configured on the ISCSI Bridge If the user wishes to authenticate the ISCSI Bridge select Perform mutual authentication Note For mutual CHAP to be performed the Initiator Secret must be set on the general tab and be the same as the one configured on the iSCSI Bridge The use of RADUS is beyond the scope of this guide Once the user is satisfied that all advanced options are correct click OK The user should now see a window as below Discover Target Portal x Enter the IF address or ONS name and port number of the portal you want to add To change the default settings of the discovery of the target portal click the Advanced button IP address or ONS name Fort Default is 3260 10 10 10 99 3260 Advanced Cancel Now click OK and the Microsoft iSCSI Initiator shall perform the discovery This usually performs quickly but can take up to a minute with multiple network ports Once the discovery is complete the user shoul
36. ets to logout effectively locking up the GUI the Bridge incorporates a five minute idle timer which will automatically logout any user after this period Potomac ESAS102800 Page 15 Within the Support section there is a link that will open up your mail service with Bridgeworks Email address loaded and an Online Help button The Online help is contextually aware of which GUI page you are currently viewing and will provide you with help relevant to the display and configuration data ISCSI to SAS Page 16 3 2 Configuring the Network Parameters Click on the Connections icon to enter the network configuration page Global Network Configuration itemel peuctem 10 10 10 1 Network Interfaces Management A Management B Connected 100Mb s _ Network Cable Unplugged 0 1f af di 9c 6f 0 1f af d1 9 70 Port 1A Port 1B Network Cable Unplugged Connected 10Gb s B 00 00 c9 cc 0f 64 00 00 c9 cc 0f 60 3 2 1 Setting the Hostname In this box enter the name you wish to use to address this Bridge in the future We suggest that you use a name that is relevant to its location and or its purpose Note If you select the DHCP mode ensure your DHCP server is set to automatically update the DNS server 3 2 2 Enabling IPv6 Checking this box will enable the Bridge to use IPv6 IP addresses As with lIpv4 you can either choose to use DHCP or assign a static IPv6 address To change the settings of a specific
37. etting the HOStNAME cccccccseeccceeeeceeeeeseeeeseueesseeeeseueesseeeeseeessaees 17 922 HWANG PVG usicwsitasmoucc tai ty ssi a tue u aan tawenas tums a 17 O20 CHING ING MTU ennir 18 324 SCTE IG IP PAGS SS cries tte wc O ematical 18 3 2 5 Setting the Subnet Mask cccsccccccsececeecescseecouecesceesscueeescecescents 18 3 2 6 Setting the Gateway ACCIeSS ccccccccsecccseeeeceeeeseeeeseeeeseeeeseeeesaaees 18 Ser Seting amI PVG IP Addres S escria 19 3 2 8 Committing the Changes senescere E 19 22 9 IRECONNECEIO Me Bido Cerren a n E dadwstndscud rater dacwrtncedudinetes 19 3 2 8 Reconnect to the BridQe ccccccscccsccceccceeccsecceeccsecceeccueecseecseeseeenaes 19 3 3 Passwords and SECUN seoran a else nee et 20 3 4 NEIWOIK SOIVICCS ics teksts edces dashes Saadeh tieacy aa aah etetace nekdiah debe 21 SAT NTP opieun RE EE EA EAER 21 242 EMALA 9 0 ea ee ee eee 21 SA SIR Fm eee nC en reed ee a 22 3 5 ISCSI Target Connections 5 ccccccccsececoeeecceecenceeecceecesceeenceesecseeescees 23 3 6 ISO SI SCSSI OMS cto secs scch sated a aoa sheen seeiete ahaa a 24 3 Device MANnaQel cccccceecceecceeeceeceeseeeceeeseeeceeesausseeeseeeseeeseesseesseessaeess 25 4 0 HTOMMTATION es a a e e woke acest ena EE 26 4 1 System NIONA ON scuis a a 26 4 2 S25 aid Mio ea ence nee mere ome ae er enter mn Cone ne ene mene ener ee mene 27 5 0 Mantenan Gosci E AN 28 5 1 Firmware YpdaleS acea A a A 28 5 2
38. eturn to the main iSCSI Initiator window The iSCSI device should now show as inactive ISCSI to SAS Page 52 B2 Connecting to an iSCSI Device using the Microsoft iSCSI Initiator in Windows Server 2008 R2 There are many iSCSI initiators available For the purpose of this user guide we shall concentrate only on the Microsoft iSCSI Initiator In this example we have used the Microsoft iSCSI that is available with Microsoft Server 2008 R2 Step 1 General Set up Open the iSCSI initiator and then click on the Configuration Tab You should see a window as shown below iSCSI Initiator Properties xi Targets Discovery Favorite Targets volumes and Devices RADIUS Configuration Configuration settings here are global and will affect any Future connections made with the initiator Any existing connections may continue to work but can Fail if the system restarts or the initiator otherwise tries to reconnect to a target When connecting to a target advanced connection features allow specific control of a particular connection Initiator Name ign 1991 05 com microsoft win d3081sidkbe To modify the initiator name click Change Change To set the initiator CHAP secret for use with mutual CHAP CHAP click CHAP To set up the IPsec tunnel mode addresses for the initiator IPsec click IPsec To generate a report of all connected targets and devices on Report the system click Report More about Configur
39. gs are correct and that these have been written down in a safe place for future reference Click the save button to save these parameters and then click the reboot button in the left hand pane 3 2 9 Reconnect to the Bridge If you made changes to your computer return them to their previous setting and reconnect to the Bridge using the IP address or hostname depending on which addressing mode you selected 3 2 8 Reconnect to the Bridge If you made changes to your computer return them to their previous setting and reconnect to the Bridge using the IP address or hostname depending on which addressing mode you selected Potomac ESAS102800 Page 19 3 3 Passwords and Security This configuration page will allow the administrator to change the access password for the GUI From within the main menu select the Password and Security icon under the Network section The GUI will now display the following window Node Control Passwords amp Security System Password Old Password New Password Retype New Password Support Change Password Secure Web Connection ee HTTPS W Online Help To change your password type the existing password and the new password into the appropriate boxes and press save Secure Connection by clicking this box it will force all further transactions with the GUI to be done via a secure encrypted HTTPS connection Once you have clicked this option save the configuration
40. he GUI is the Network Connections window select this and check the Link Speed entry in each of the Link Status Boxes This should be 1000Mb s if this is 10 or 100Mb s this will limit the performance dramatically Packet loss can be a cause of poor performance Within the Link Status Box check the number of TX and RX errors for both network Interfaces that are displayed in the Network Connections window This should be zero or a very small number If these are showing large numbers of errors check the connections between the Bridge and the initiator Also check that the entire network cabling between the Initiator and the Bridge is Cat5e certified By enabling Jumbo packets increasing the MTU size to 9000 from within the GUI Network Connections window section 3 2 2 you can improve the throughput performance of the Bridge This will only work if ALL of the components in the infrastructure between the Initiator and the Bridge are enabled for Jumbo packets That includes the HBA all switches and routers and the Bridge itself If any of the components are not enabled or not capable of handling Jumbo packets then unexplained packet loss or corruption can happen Data Digests are an extra level of checksum error checking on top of the standard TCP IP checksum error checking configured on the initiator However the calculation of these extra checksums can greatly affect overall performance Therefore Header and Data Digests should only be enable
41. ial Number of the Bridge iSCSI Qualified Name IQN Within the lower window are 3 bar graphs which provide an approximation of the following performance parameters e Data Throughput This indicates the current performance in MB s e CPU This indicates the percentage of the time the CPU is occupied undertaking the management and scheduling the transfer of data between the two interfaces e Memory Usage This indicates the percentage of memory used by all processes ISCSI to SAS Page 26 4 2 System Log This System Log page allows the administrator to view the logged status of the Bridge From within the main menu select the View Log file icon from the Bridge Maintenance section The GUI will now display the following window System Log Node Control Console Home System Log Reboot System System Information Serial number 197762 Firmware Version shepherdm v3 02 Apr 22 2010 16 16 57 iSCSI ION Logout Support Jan 1 16 14 20 notice kernel klogd exiting Online Help Jan 1 16 14 20 info syslogd started BusyBox w1 11 1 Contact Support Jan 1 16 14 20 notice kernel klogd started BusyBox v1 11 1 2010 04 22 14 11 51 BST Below the log display pane are two options Clear System Log this will delete the current and saved logs within the Bridge Download this will download the log file to your local disk You may be asked by our support team to email this log file to them to aid them in any problem resol
42. iscover and log on to a target using 4 basic connection type the IP address or DNS name of the target and then click Quick Connect Target Quick Gonnect Discovered targets Refresh ign 2002 12 com 4bridgeworks OOO000 6d7as5 44ceF1Fad Reconnecting ign 2002 12 com 4bridgeworks 001cO3 naa SO060b000057 Reconnecting g To connect using advanced options select a target and then onic click Connect To completely disconnect a target select the target and Diananmed then click Disconnect For target properties including configuration of sessions Properties select khe target and click Properties For configuration of devices associated with a target select Dieses the target and then click Devices More about basic C51 connections and targets cei y In this example two iSCSI targets have been discovered The first device is the tape drive and the second is the media changer If no devices are displayed check the settings used to do the discovery especially the CHAP settings then return to Targets tab and click Refresh If still no devices are displayed check network cables and that the iSCSI Bridge is operational Potomac ESAS102800 Page 57 To connect to one of the iSCSI Targets click on one of the target names and then click the Log on button A window should appear Connect To Target x Target name gn 2002 12 com 4bridgeworks 000000 977d098e36978373 0000C I Ad
43. ite Targets Volumes and Devices General Discovery Target portals Address Port Adapter IP address 10 10 10 50 3260 Default Default renee Gate ISNS servers Name ISCSI to SAS Page 44 lf the user has an iSNS server then the address can be added in the iSNS servers list by clicking Add A window should appear Add iSNS Server IP address or DNS name of server Enter the address of the iSNS Server then click OK The Microsoft iSCSI Initiator will now query the iSNS Server and discover any iSCSIl Targets that are registered Step 3 Targets Click on the Targets tab The devices discovered should now be listed and shown as below Favorite Targets Volumes and Devices RADIUS General Discovery Targets To access storage devices for a target select the target and then click Log on To see information about sessions connections and devices for a target click Details Targets Name Status ign 1988 11 com dell b9ad34 spi 6 0 0 Inactive ign 1988 11 com dell b9ad34 spi 6 0 1 Inactive In this example two iSCSI targets have been discovered The first device is the tape drive and the second is the media changer If no devices are displayed check the settings used to do the discovery especially the CHAP settings then return to Targets tab and click Refresh If still no devices are displayed check network cables and that the iSCSI
44. le connector also known as an iPASS connector with 4 SAS connections per port You will require a SAS cable that supports this connector at the Bridge end and the type of connect your peripheral device supports at the other If you are in any doubt please contact your reseller for assistance Potomac ESAS102800 Page 3 Table of Contents 1 0 I cole 8 oe Rememeee ene etre acne tne E E ie eee eee Rene eee 6 1 1 OVENI OW ea met eter enn ee E rr 6 1 2 Mangal ayoul erer senna delsseaniadesseatadessanaaes dean dasthanaaes dean sestkanaessaninds 7 1 3 DIC IIMIMOMNG ccitate octet Nei a ae sae cae S 7 LA SLO LY INOUCES osii eia a a i 8 2 0 Installing the ESAS102800 Bridge ccccceccceeeceeeceeeseeeeceeeeeeeeseeeesseesseeens 9 2 1 Connecting the Ethernet INte a E sarne 9 2 2 Connecting the 10Gb Ethernet Cables cccceecceseeeeceeeeeeeeeeseeeeseeeeens 10 2 3 SAS BUS GONMECIOMN ien nese puede eee oes 12 2 4 Connecting the Power Supply ccccccccssececeeeeseeeeeseeeeseeeesseeeeseeeesseeees 13 3 0 Configuring the ESAS102800 Bridge ccccceccecsseeeceeeeseeeeeseeeeseesesseeesaes 14 3 1 USING the WED INTCM ACE estetteediectce citereeverdecieccitenawnuidiercldeteweddiceveiteneees 14 3 1 1 El OWGOMS teima 14 3 1 2 Connecting to the Web Interface cccccccccseeeeseeeeseeeeeseeeesaeeeeeees 14 3 2 Configuring the Network Parameters c cccceceeeeeseeeeeeeesseeeeseeeesseeeess 17 3 2 1 S
45. logout and login again Note It is not possible to reset the password without logging into the GUI so ensure you remember your password ISCSI to SAS Page 20 3 4 Network Services 3 4 1 NTP The Network Time Protocol NTP is a protocol for synchronising the clocks of computer systems over the IP network This is used by the Bridge to synchronise its internal clock with the rest of the network This configuration page will allow the administrator to configure the IP addresses for the Network Time Domain server From within the main menu select the Service Control icon under the Network section The GUI will now display the following window Service Control Simple Network Time Protocol SNTP Use NTP Event Notification Email Enable Email Alerts Recipient Email Address Sender Email Address SMTP Username SMTP Password Use iSNS B iSNS Server Storage Name Service iSNS To enable NTP on the Bridge click the tick box and enter the IP address for the NTP Server and then click the save button 3 4 2 Email Alerts The Bridge can notify a systems administrator when certain level log events are observed in the Bridges logs To enable email alerts on the Bridge click the tick box next to Enable Alerts this will allow you to alter the contents of the currently greyed out fields The following fields need to be completed Recipient Email Address This is the email address to which the emai
46. ls will be sent Senders Email Address This is the email address that emails will be sent from This can be any address and does not have to be genuine which is useful for email filtering For example entering logs 4bridgeworks com would allow emails from this address to be filtered to a specified folder in the users email client Trigger Event Log Level This allows the user to specify what severity of event will trigger the log to be emailed with Critical Events being the most severe and Warning Events being the least For each level picked the higher level logs will also be emailed for example selecting Potomac ESAS102800 Page 21 Error Events will also send all Critical Events Below are examples of events that will be sent for each log level e Critical The Bridge is running at non recommended temperatures e Error The Bridge rejected a login attempt e Warning An Initiator has logged out of the Bridge 3 4 3 ISNS Internet Storage Name Service allows automated discovery management and configuration of each iSCSI resource from a central point If this option is enabled the Bridge will register its resources with a central iSNS server To enable iSNS on the Bridge click the tick box and enter the IP address for the iSNS Server and click the save button ISCSI to SAS Page 22 3 5 iSCSI Target Connections This configuration page will allow the administrator to configure the password and username for the CHAP authorisation on
47. ly distribute incoming requests to all processing paths This session has the following connections Source Portal Target Portal Status Type Weight 10 0 0 237 6 10 10 10 50 Conne Active n a 10 10 11 56 10 10 11 50 Conne Active n a The user can add up to 8 different connections Once the user has completed setting up the connections click OK to return to the iSCSI session page You should now see the number of connections increased In this example we have 2 connections This target has the following sessions Identifier F A87 4id3ic 40000 13700000008 Session Properties Target portal group 1 Status Connected Connection count 2 Session Connections To configure how the connections within this session are load balanced click Connections Now click on OK to return to the Microsoft iSCSI Initiator main window Potomac ESAS102800 Page 51 Step 6 Logging off an iSCSI Session To log off an iSCSI Session follow the following procedure e Open the Microsoft iSCSI Initiator and click on the Targets tab e Click on the iSCSI session that the user wishes to log off and then click Details e Inthe Target Properties window select the Sessions Tab and select the identifier that is to be logged off e Click the Log off button This will log off all connections associated with the iSCSI Session The session identifier should now be removed from the identifier list Click ok to r
48. n Tio use mutual GHA amp P either specify an initiator secret on the Configuration page or use RADIUS F Use RADIUS to generate user authentication credentials Use RADIUS to authenticate target credentials Select the Initiator IP address and the Target Portal that you wish to connect too via the pull down menus in the Connect by using section When setting up multiple connections you ideally want to connect to different ports and different network interfaces Set up CHAP then click OK The user will now be brought back to the window below Click OK and now the user should see the Session Connections page with two connections ISCSI to SAS Page 62 Multiple Connected Session MCS MICS policy Round Robin Description The round robin policy attempts to evenly distribute incoming requests to all processing paths This session has the Following connections Source Portal Target Portal Weight 0 0 0 0 60102 10 10 10 10773 Connected Active nj 0 0 0 0 63942 10 10 10 107735 Connected Active nja o oc To add a connection click Add To remove a connection select the connection above and then Bemawg click Remove To edit the path settings for the MCS policy select a Edit connection above and then click Edit UEH JK Cancel Apply The user can add up to 10 different connections Once the user has completed setting up the connections click OK to return to the iSCSI
49. n On the Connect using section the user can select the Target Port that he wishes to connect to This is particularly useful if the user is going to create multiple connections In this example we have chosen to connect to the IP address 10 10 10 99 on port 3260 ISCSI to SAS Page 58 Set up the Digest and CHAP settings as described in stage 2 during the discovery phase and click OK This will now take you back to the Connect to Target window Click OK once more The user should now see the iSCSI Target connected iSCSI Initiator Properties xi Targets Discovery Favorite Targets volumes and Devices RADIUS Configuration Quick Connect To discover and log on to a target using a basic connection type the IP address or DNS name of the target and then click Quick Connect Target Quick Connect Discovered targets Refresh iqgn 2002 12 com 4bridgeworks 000000 977d098e36978 Connected ign 2002 12 com 4bridgeworks 000000 977d0a8e36978 Inactive To connect using advanced options select a target and then click Connect To completely disconnect a target select the target and Disconnect then click Disconnect For target properties including configuration of sessions Properties select the target and click Properties For configuration of devices associated with a target select Devices the target and then click Devices More about basic iSCSI connections and targets OK Cancel Apply
50. nk On 1000Mb s Flashing Data an Pd Off 10 100mb s 10GB Ethernet port Link Up Data Transfer SAS CJ Solid Off No link detected EF Solid On Link detected C o Note During heavy data transfers the LEDs may appear off for an extended period Potomac ESAS102800 Page 65 Appendix D Technical Specifications C Recommended minimum clearance i 100mm 4 in on front and rear faces for cooling Electrical mema e ssm OOS sismes S Ce ISCSI to SAS Page 66 Visual Indicators Link Activity Potomac ESAS102800 Page 67
51. ns Note See Appendix B for how to set up multipath on a Microsoft based Server Potomac ESAS102800 Page 23 3 6 iSCSI Sessions Each initiator will open a session with each target device to review these connections select the iSCSI secessions page from the SCSI group Bridge Control Console Home iSCSI Sessions Reboot System Logout 977d098e36978373 000000000000000 iqn 1991 05 com microsoft kirk2k3 Support Online Help This page lists the current connections i e logged on from iSCSI hosts It displays which initiator is connected to which Target device Note It is possible that more than one host to be connected to any target device or one host to multiple target devices Should it be required it is possible to send a logout request to a host by highlighting the host connection and pressing the logout button Note Many initiators are configured to automatically reconnect after completing the logout request If this is the case then the connections window may not show any change ISCSI to SAS Page 24 3 Device Manager From within the Console Home menu select the Device Management icon This will display all the configured devices Device Management Bridge Control Console Home Device Info eui 00041b0000108000 Reboot System Logout 1 Update Configuration Support Online Help To display further details of the connected devi
52. o view its description Displays the files and Folders on your computer See also My Documents My Network Places Network and Dial up Connections 5 object s Advanced Help File Edit View Favorites Tools Back gt E A Search C Folders E4 history Ax u XA HE Address ay Network and Dial up Connections Go w ZE E Make New Connection j ath 10 100 Ethernet LAN Network and Dial tf Gigabit Ethernet LAN up Connections This folder contains network connections for this computer and a wizard to help you create a new connection To create a new connection click Make New Connection To open a connection click its icon To access settings and components af a canmnmectinn vinhkeclicl ike ican 2 2 3 objectis Gigabit Ethernet Status 2 x General r Connection Status Connected Duration 00 25 10 Speed 1 0 Gbps Activity Sent cB Received L te Packets 58 720 86 280 Disable Close In the My Computer window select Network and Dial up Connections positioned in the bottom left hand corner From within the displayed Network and Dial up Connections select the interface connection that will be used to connect to the Bridge in this example we have selected the Gigabit Ethernet interface A general status page will be displayed From within this page select Properties Potomac ESAS102800
53. of the Bridge return your computer to the original settings and reconnect to the Bridge ISCSI to SAS Page 40 Appendix B Microsoft iSCSI Initiator B1 Connecting to an iSCSI Device using the Microsoft iSCSI Initiator in Windows Vista Server 2008 R1 or Server 2003 There are many iSCSI Initiators available However for the purpose of this user guide we shall concentrate only on the Microsoft iSCSI Initiator In this example we have used the Microsoft iSCSI that is available with Microsoft Vista However the following procedure should be identical for all versions of Microsoft iSCSI Initiator Step 1 General Set up Open the iSCSI initiator and then click on the General Tab You should see a window as shown below iSCSI Initiator Properties Favorite Targets Volumes and Devices RADIUS General Discovery alk __ Targets iSCSI devices are disk tapes CDs and other storage devices on another computer on your network that you can connect to Your computer is called an initiator because it initiates the connection to the iSCSI device which is called a target Initiator Name ign 1991 05 com microsoft tarquin vista To rename the initiator dick Change Change To use mutual CHAP authentication for verifying targets set up a CHAP secret To set up IPsec tunnel mode addresses dick Set up What is iSCSI oS Goa In this window the user is able to configure the initiator name specify
54. ppear on the Bridge The power up Status of libraries are usually displayed on the front panel Ensure that the cables between the Bridge and the devices are connected Connect to the Bridge via the GUI and check that devices are present in the Device management window and are enabled you will need to drill down each device entry to see this option If you can ping the Bridge but the GUI fails to appear check the setting within the Web Browser you are using If you are directly connected to the Bridge then any proxy setting will require adjustment and may require you to contact your administrator Ensure that the CHAP settings for the initiator and the Bridge are the same A common mistake is when enabling CHAP only for a device after the initial discovery by the initiator It will be necessary to remove the address from the discoveries tab and recreate it with the appropriate CHAP settings otherwise any rediscoveries will be attempted without CHAP and no devices will be returned Force a rediscovery from the initiator Reboot the devices and Bridge If none of the above resolves your problem please contact support Potomac ESAS102800 Page 33 6 4 Poor Performance Poor performance can be caused by many differing reasons The following checklist is provided as a guide to where you may find ways to improve performance Ensure your initiator and Bridge are communicating at the fastest possible network speed Within t
55. re must be taken and the warning should be read thoroughly 1 3 Definitions In order to understand the process of identifying and configuring devices on the SCSI bus for the Server to communicate with it is necessary to understand some of the terms used by the menus iSCSI Target Device iSCSI target devices are devices such as disk drives tape drives or RAID controllers that are attached to the network Each device is identified by an IQN iSCSI Qualified Name iSCSI Qualified Name IQN Anything connected to a network be it a computer printer or iSCSI device must have a unique identifier such as an IP address to enable other devices to communicate with it With ISCSI devices both targets and initiators an extra level of identification in addition to the IP address is employed This is called the IQN The IQN includes the iSCSI Target s name and an identifier for the shared iSCSI device Example 2002 12 com 4bridgeworks sdt600a014d10 5 CHAP CHAP is an authentication scheme used by Servers to validate the identity of clients and vice versa When CHAP is enabled the initiator must send the correct Username and Target Password to gain access to the iSCSI Bridge The Initiator Secret is provided to allow iSCSI mutual CHAP If mutual CHAP is selected on the Initiator the iSCSI Bridge will authenticate itself with the initiator using the initiator secret SCSI Target Device A SCSI device is a device that is connected to the SC
56. ridge return your computer to the original settings and reconnect to the Bridge ISCSI to SAS Page 38 A3 Windows Vista Server 2008 or Vista or 7 If your computer is running Windows Vista or 7 follow the instructions below For users with Windows 95 98 or NT instructions are detailed in Appendix A1 and for Windows 2000 2003 or XP instructions are detailed in Appendix A2 From the Start menu select Control Panel Control Pas Meme si ai a a aa From the control panel select the Douap siea vig ry a owe Network and Internet link followed ee came eae ni tienen verrat by the Network and Sharing iaaa ces Centre link Meneo Lovers type rtervat Chenge yous nathan horny setiya x An A ea Aae A at AA Sat up a aran brodband Geb od hoc cv VPN commector ot eet up a route a Now you can see the Local Area YP SCR IEEE PEE OR PEROT OREO EE A connection dialogue box Double click Local Area Connections a Punta Pe errs ert Ve ory epar Acier fi and preter located oa other ntan comput of henge thang aidaa 2 ay Tep Airt potier lt t gmt Chemia ant tein Aata pritlerd lt n get D ibiti intg Miria Local Area Connection Status A general status page will be displayed From within IPv4 Connectivity Intemet this page select Properties IPyv6 Connectivity No Internet access Meda State Enabled Duration ii cays 09 37 18 Speed 1 0 Goos oa Sent A Re ceiwed a Bytes 8 714 667 387 676 68
57. s on Following portals Refresh Address Port Adapter IP address To add a target portal click Discover Portal Discover Portal To remove a target portal select the address above and then click Remove Remove iSNS servers The system is registered on the Following iSNS servers Refresh To add an iSNS server click Add Server Add Server To remove an iSNS server select the server above and then click Remove Remove More about Discovery and iSNS OK Cancel Aoply ISCSI to SAS Page 54 To add an iSCSI Target portal click on Discover Portal The user should now be presented with a window Discover Target Portal Enter the IF address or ONS name and port number of the portal you wank to add To change the default settings of the discovery of the target portal click the Advanced button IF address or DNS name es Advanced Enter an IP address for the iSCSI Target 10 10 10 99 Port Default is 3260 cres In this example we shall use the IP address of Leave the port 3260 unless you have configured your iSCSI Bridge only to respond on port 860 in which case change it to 860 Click on the advanced button to see the advanced options Advanced Settings General IPsec Connect using Local adapter Initiator IP Default v Target portal IP 7 CRC Checksum l Data digest H
58. the iSCSI Bridge Connecting the Ethernet cables Connecting the 10Gb Ethernet cables Connecting the SAS cables Connecting the Power Supply 2 1 Connecting the Ethernet Interface The iSCSI Bridge can be used on the following network configurations e 10BaseT e 100BaseT e 1000BaseT Gigabit It is not necessary to specify which network type you are connected to as the iSCSI Bridge when powered up it will automatically select the correct network speed The connection to the management Ethernet network is via an industry standard twisted pair RJ45 copper interface on the front of the unit To connect the iSCSI Bridge to the Ethernet network inset one or two Cat 5E cables into the connector on the unit as shown below When the plug is in the correct position a click should be heard Note If you only intend to use a single network connection use the left hand network socket Management A as this is set to 10 10 10 10 for the initial configuration of the Bridge Rear Panel of the Bridge Showing Ethernet Cable Connections Potomac ESAS102800 Page 9 2 2 Connecting the 10Gb Ethernet Cables Depending on the configuration you have purchased one of two cables will be required for your product Small Form factor Pluggable SFP If you have purchased the card with the SFP s already connected the following cables can be used e Multimode Multi Mode 50 125 OM3 Patch Cables up to 300 meters e Multimode Multi Mode 50 125 OM
59. to specify whether the discovery is done using Data and or Header Digests Unless the iSCSI device is on a poor quality network where data corruption is likely it is recommended then Header and Data Digests are left disabled as performance will be affected If the iSCSI Bridge has had CHAP enabled or the user wishes to authenticate the iSCSI Bridge click on the checkbox CHAP login information to enable CHAP Now enter the username and target secret that was configured on the iSCSI Bridge If the user wishes to authenticate the iSCSI Bridge select Perform mutual authentication Note For mutual CHAP to be performed the Initiator Secret must be set on the general tab and be the same as the one configured on the iSCSI Bridge The use of RADUS is beyond the scope of this guide Once the user is satisfied that all advanced options are correct click OK The user should now see a window as below Add Target Portal ee Type the IP address or DNS name and port number of the portal you want to add To select settings for the discovery session to the portal click Advanced IP address or DNS name 10 10 10 50 OK Cancel Now click OK and the Microsoft iSCSI Initiator shall perform the discovery This usually performs quickly but can take up to a minute with multiple network ports Once the discovery is complete the user should see the target listed in the Target Portals list iSCSI Initiator Properties __ Favor
60. ution Potomac ESAS102800 Page 27 5 0 Maintenance 5 1 Firmware Updates The Firmware Updates page will allow the administrator to load new firmware into the Bridge From within the main menu select the Firmware Updates icon from the Bridge Maintenance section The GUI will now display the following window Bridge Control Update Firmware Console Home Firmware Upload Reboot System ici iala u Firmware Revision vielerj v3 02 Mar 30 2011 11 40 27 Logout Firmware image Support Update Online Help After clicking update please wait for this page to change before Contact Support pie ean From time to time it may be necessary to upgrade the firmware within the Bridge New versions contain resolutions to known issues as well as new features and improvements to the functionality of the Bridge It is advisable to check for the latest release on a regular basis New versions of the firmware can be downloaded from the Bridgeworks web site at http www 4bridgeworks com software_downloads phtml Once you have downloaded the new firmware to a local disk drive e Click on the browse button to locate the file you have downloaded from the website e Click on the update button Updating the firmware will take a few minutes after which it will be necessary to reboot the system to bring the new code into memory ISCSI to SAS Page 28 5 2 Saving the Configuration to Disk The Load Save Configuration page will allow the
61. yte MTU would translate to 9028 byte setting Refer to your switch documentation to understand what the maximum frame size settings are for your switch 3 2 4 Setting the IP Address There are two possibilities when configuring the IP address for the Bridge DHCP the Bridge will seek out the DHCP server on your network and obtain an IP address from the server each time it powers up Static IP the IP address set in this page will be the IP address the unit will use each time it powers up Depending on your configuration either click the DHCP button or set your Static IP address Note If you select the DHCP mode ensure your DHCP server is set to automatically update the DNS server 3 2 5 Setting the Subnet Mask If the Bridge is configured to use DHCP the net mask will be issued from the DHCP server If you are using static IP address enter the IP mask in this box 3 2 6 Setting the Gateway Address Enter in this box the address of your gateway controller for your network ISCSI to SAS Page 18 3 2 7 Setting an IPv6 IP Address If IPv6 is enabled on the network connections page here you can choose to use DHCP to automatically assign an IPv6 address or you can set a static IPv6 address If you choose to assign a static IPv6 address you will also need to assign an IPv6 subnet mask 3 2 8 Committing the changes Note Before you commit these parameters to memory it is worth checking that all the parameters and spellin

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